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Joined: Apr 2001
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Well, I decided to run my car today with a stock Contour SVT airbox and paper filter. The car has always felt faster with the SVT airbox than it has with any other intake, but I always refused to believe that it made more power, since so many of you SVT guys have KKM's.
2 weeks ago with the 9-inch K&N filter:
16.10 @ 86.93
16.13 @ 86.38
Tonight with the stock SVT airbox and paper filter (it was actually hotter tonight as well).
16.02 @ 86.73
16.01 @ 86.69
16.04 @ 86.54
I'm going to compare the two on the dyno on Saturday. Something tells me the open K&N will still put down slightly more power with the hood open, but definitely NOT on the street or the track, where it counts.
The car is a V6 ATX Cougar with a lot of exhaust work and no secondaries. Full interior.
2000 Mercury Cougar V6 ATX. 16.0@87MPH, 155.0 FWHP
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Joined: Sep 2000
Posts: 7,329
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Psst... HEATSHIELD!!!  Heatshield, cold air draw, better underhood venting. All major factors in better performance "off" the dyno.
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Joined: Jun 2002
Posts: 60
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Posts: 60 |
Originally posted by Frank:
16.10 @ 86.93
16.13 @ 86.38
Tonight with the stock SVT airbox and paper filter (it was actually hotter tonight as well).
16.02 @ 86.73
16.01 @ 86.69
16.04 @ 86.54
i ask because, as a general rule, most of the power would be seen a higher RPM with a better intake setup. your MPH doesnt indicate a top end change. actually, your best MPH was without the SVT airbox.
1985 SVO: 4 cylinders, 5 gears, 20 PSI
1998 torredor red SVT contour: #3705 of 6535
need info on your SVTs service/recall/warranty history? e mail me...
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Joined: Apr 2001
Posts: 422
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Posts: 422 |
With the K&N:
2.51
2.49
With the SVT airbox:
2.41
2.44
2.46
I launched the same way each time, since it's an automatic. Stood on the brake, stood on the gas, let go of the brake. My theory is that idling in the staging lanes fills the engine bay with hot air, causing the car to struggle more coming off the line with the open K&N.
2000 Mercury Cougar V6 ATX. 16.0@87MPH, 155.0 FWHP
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Joined: Aug 2001
Posts: 3,950
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Posts: 3,950 |
Some great times for the ATX!
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Joined: Aug 2001
Posts: 176
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This might be really cheesy but I heard once that running the AC will generate the radiator fan to kick in and keep running just before the the run, and it supposedly would help. I guess a manual override switch would do the same thing. I agree with Demon a heat shield would do your 9" K&N miracles.
2000 Roush Cougar MTX
MSDS Headers, Rear disc conversion, SVT TB and IM, Custom 2.5" exhaust, Weapon R Dragon w/kkm MAF adaptor, B&M, NR wht gauges
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Joined: Jun 2000
Posts: 3,248
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Posts: 3,248 |
I had similar concerns so I dynoed hood down. I have a custom full airbox and 9" K&N. The K&N, airbox, and 75mm MAF made 12 HP more than stock SVT parts (again hood down) though I did not acess the indivdual contributions (hard to do as MAF meter was calibrated specifically to the K&N.)
But without an airbox I agree, stock probably better on a hot day..I have underhood temp recordings to back this up and I actually had reverted to stock airbox from KKM in the summer due to heatsoak. airbox eliminated heatsoak.
1999 Amazon Green SVT Contour (#554/2760)
Stock SVT Duratec V6 with:
Intake- K&N filter/75mm MAF meter
Exhaust- MSDS Y-pipe/Bassani catback
Durability-Ford "dual mode" damper, Mobil 1/K&N oil filter
179.2 FWHP at 6900 RPM
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Joined: Jun 2000
Posts: 1,444
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hey Dan do you have any pics of your setup?
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Joined: Jun 2000
Posts: 3,248
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Shaun,
Sorry no pics. Plan to take some pics but I have some new rubber trim for the top of the airbox/hood seal that I wanted to install, FMS wires, then clean things up..excuses, excuses
1999 Amazon Green SVT Contour (#554/2760)
Stock SVT Duratec V6 with:
Intake- K&N filter/75mm MAF meter
Exhaust- MSDS Y-pipe/Bassani catback
Durability-Ford "dual mode" damper, Mobil 1/K&N oil filter
179.2 FWHP at 6900 RPM
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Joined: Jun 2002
Posts: 60
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Joined: Jun 2002
Posts: 60 |
Originally posted by Frank:
With the K&N:
2.51
2.49
With the SVT airbox:
2.41
2.44
2.46
I launched the same way each time, since it's an automatic. Stood on the brake, stood on the gas, let go of the brake. My theory is that idling in the staging lanes fills the engine bay with hot air, causing the car to struggle more coming off the line with the open K&N. i think you would be amazed at what a better launch could do for you. the 60' times are not too good. have you tried stalling it lower than the limiter? it seems like youre breaking loose in 1st gear. notice the 2.51 60' time compared to the SVT 2.41 time... all the difference was in the launch...
1985 SVO: 4 cylinders, 5 gears, 20 PSI
1998 torredor red SVT contour: #3705 of 6535
need info on your SVTs service/recall/warranty history? e mail me...
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